Printing-plate and base.



' No. 659,385. Patented Oct. 9, I900.

F. J. WENDELL.

PRINTING PLATE AND BASE.

(Application filed Mar. 27, 1900.)

(No Model.)

NITED STATES PATENT OFFICE.

FERDINAND J. WENDELL, OF NEW YORK, N. Y.

PRINTING-PLATE -AN D BASE.

SPECIFICATION forming part of LettersvPatent No. 659,385, dated October9, 1900.

Application filed March 27, 1900. derial No. 10,323. lNo model.)

To ctZZ whom, it may concern Be it known that I, FERDINAND J. WEN- DELL,a citizen of the United States, and a resident of New York city, in theState of New York, have invented Improvements in Printing-Plates andBases, of which the following is a specification.

This invention relates to printing-plates and more particularly tostereotype-plates, and has for its object to lighten as much as possibleplates having deep side bearing-surfaces adapted to keep the plate frombeing drawn upward by suction when the printingroller is passed over it,while still maintaining the plate sufficiently strong to withstand thepressure in thechase.

Heretofore it has been necessary to make deep plates that are not lockedto a base comparatively heavy in order towithstand the lateral pressureof the locking-up devices,

such as the column-rules, chase, &c. When.

an unbending flat surface, such as the side of a column-rule, is broughtto bear forcibly against another flat surface, if the extremities ofthis other surface withstand the pressure then the portion between suchextremities may be fragile without danger of bending or breaking fromlateral pressure. I make use'of this principle to provide a very lightbutstrong plate.

In the accompanying drawings, Figure 1 represents an end view of aprinting-plate type-high. This base B forms a strong lateral brace atthe lower edge of each side of the combined plate and base, againstwhich a column-rule or other furniture bears and prevents the flangesfrom being bent inward from lateral pressure. The plate A itself forms astrong lateral brace at the upper edge of each side, so that the portionbetween these braced edgesthat is, the flanges aare not subjected tomuch lateral pressureand may be made quite thin.

Sofar as already described the plate A of Fig. 2 and its side flanges aare the same as the plate A and flanges a. To assist the flanges at or ain preventing the weight of the impression devices bending the plate Aor A downward, one or more vertical braces or legs bearing between theplate and base may be provided. Fig. 1 shows such a vertical brace orleg a formed with the plate A and resting on the base B, while Fig. 2shows two vertical braces or legs I) 17 formed with the base B and onwhich the plate A rests. It is evident that any number of such Verticalbraces, may be formed either with the plate or the base to suit thewidth of the plates. The plate shown in the drawings is about the widthof a column of newspaper matter; but it may be of any width, even to awhole page.

I claim as my invention- 1. The combination of a printing-plate providedwith thin vertical flanges raising the plate nearly type-high andforming deep side bearing-surfaces with little extra weight, with a basefurther raising theplate just typehigh, and forming a brace at thebottom of the combined plate and base to prevent the said flanges beingbent inward by lateral pressure when the parts are locked up,substantially as described.

2. The combination of a printing-plate provided with thin-verticalflanges raising the plate nearly type-high and forming deep sidebearing-surfaces with little extra weight, with a base further raisingthe plate just type-' high and forming a brace at the bottom of thecombined plate and base to prevent the said flanges being bent inward'bylateral pressure when the parts are locked up, and one or morelongitudinal braces or legs between the plate and base intermediate ofthe said flanges.

In testimony whereof I have signed my I name to this specification inthe presence of two subscribing witnesses.

FERDINAND J. WENDELL.

- Witnesses EDITH SARLES, EDITH J. GRISWOLD.

